The barrel of the QLB06 grenade launcher was actually very simple.
However, Sun Hang and Hu Qinghe encountered a problem when they were developing the 35mm grenade.
"Sun Hang, I've read about this radio proximity fuze before. It was mainly used by anti-aircraft guns to hit planes in the air…"
" But this thing is very big. How to stuff it into a 35mm grenade is a problem…"
Sun Hang nodded and said,"
"You are still limited by your inherent thinking.
The anti-aircraft gun used to shoot at planes in the air had extremely high requirements for the infinitely close fuze. Whether it was the high-speed rotation of the anti-aircraft gun itself or the initial speed of the muzzle to be able to shoot at the aircraft in the distance, such an environment was very harsh for the radio proximity fuze.”
" However, our QLB06 grenade launcher is different. We don't need a large muzzle velocity. We only need to push the grenade to a maximum distance of 500 meters…"
Like the M79, Sun Hang's QLB06 grenade launcher didn't aim as far as possible.
He only needed to use it to fill in the 50 to 400 meter gap.
A distance of more than 400 meters could be covered with 60mm mortars.
Moreover, the mortars could also bombard the enemy's forces inside the trenches due to the fact that their warheads were pointing downwards. They were much more suitable than the gun-mounted howitzers.
" And most importantly, the radio proximity fuze has a natural and unparalleled advantage in the rainforest battlefield.”
The core technology of the radio proximity fuze was provided by the system as a reward for Sun Hang.
The principle, structure, and size of the body were already very beautiful.
At the same time, the system also provided a set of mechanical collision fuze schematics.
If Sun Hang wanted to save time, he could have directly used the mature technology of mechanical impact fuze.
However, Sun Hang knew that if the radio proximity fuze could be successfully installed on his QLB06 active grenade launcher, it would be of great significance.
He made some slight modifications. With such a small size, it could be installed on 105mm, 130mm cannons.
At that time, these cannons would explode directly above the enemy's head, and countless fragments would fly everywhere. Then, it would be even more offensive to the enemy's effective strength.
Hearing Sun Hang's words, Hu Qinghe's eyes lit up.
He nodded slightly.
However, when Hu Qinghe looked at the blueprint of the radio proximity fuze that he had just drawn, he frowned.
"Sun Hang, there is still a problem. The radio proximity fuze you mentioned requires a vacuum tube.
I asked Zheng Shan to ask around, and he found that the other military factories don't have such a small vacuum tube…"
The structure of the radio proximity fuze was actually not too complicated.
The main components included the radio vacuum tube, the oscillation receiver circuit, the thyratron, and the power supply.
The shell itself could be used as an antenna for bi-directional transmission and reception.
Although the initial velocity of the grenade launched by the QLB06 active grenade launcher was not high, its own rotation speed was not particularly high.
However, in order to reduce the size, Li Weiting found a lot of military vacuum tubes, but it was useless.
If it was too thin, it would shatter when the grenade flew.
Either it was too big to fit in a 35mm bullet.
Sun Hang and Hu Qinghe were stumped.
They were faced with the same predicament as the Type 03 automatic rifle.
The core technology given by the system could be used, but when it came to the actual materials from the 1970s, he could not find any suitable materials.
However, unlike the Type 03 automatic rifle, the material of the assault rifle's barrel could still be tested. Various suitable steel materials could be found for finite-element analysis.
As for the vacuum tube of the radio proximity fuze, there was no suitable material on the market.
He didn't even have the chance to try.
This time, whether it was Zheng Shan or the other higher-ups of the Red Star Military Factory, all the members of the project team were worried.
Even though Mo Xinyu had already finished producing the barrel and trigger of the QLB06 grenade launcher, he sprayed paint on it and placed it on Sun Hang's table.
Sun Hang and the others also had a helpless look on their faces.
The problem they were facing now was that they had the QLB06 active grenade launcher but no suitable ammunition.
At this moment, Xu Hongfei quietly pushed open the door of the project team.
Then, he came to Sun Hang's side and said in a low voice,
"Sun Hang, I have something to discuss with you. I used to have a comrade who was injured in the ear by the enemy's artillery on the battlefield. That's why his hearing is impaired…"
"I remember that last time at the 083 Military Factory, didn't we take a lot of hearing aids that he used for export? Can you get me one from the warehouse…"
Sun Hang, who was frowning and thinking hard, suddenly thought of something when he heard Xu Hongfei mention the word hearing aid. He couldn't help but slap Xu Hongfei's shoulder fiercely.
" That's right, Xu Hongfei. In our era, hearing aids are vacuum tube hearing aids. We can directly use the vacuum tube inside the hearing aid as the vacuum tube of our infinite electric proximity fuse..."
Sun Hang slapped Xu Hongfei's shoulder.
Xu Hongfei's entire body was slapped onto the table.
At the same time, a look of confusion flashed across his face as he looked at the excited Sun Hang.
The development of hearing aids had actually gone through several eras.
It was because of the invention of the vacuum tube that hearing aids could be worn on the ear and moved around with people.
Vacuum tube hearing aids were gradually replaced by modern integrated circuit hearing aids in the 1980s.
In the 1970s, it was definitely still the original vacuum tube hearing aid.
Therefore, Sun Hang guessed that there must be vacuum tubes in the hearing aids of 083 Factory Manager Li that he had taken back as local specialties.
The vacuum tube that could fit in the ear was actually very small. In addition, it was the military quality of Factory Manager Li and the others. It was very suitable to be used in this bullet-type grenade launcher.
This book comes from：m.funovel.com。